Home / 839,384.67-1,158,349.08-457,410.54

Finding the Fourth Proportional to 839,384.67, 1,158,349.08 and 457,410.54

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Solution

The fourth proportional to 839,384.67, 1,158,349.08 and 457,410.54 is: 631,225.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,384.67 : 1,158,349.08 = 457,410.54 : x
  2. Step 2: Convert to fraction form
    839,384.67/1,158,349.08 = 457,410.54/x
  3. Step 3: Cross multiply
    839,384.67x = 1,158,349.08 × 457,410.54
  4. Step 4: Simplify right side
    839,384.67x = 529,841,078,191.30
  5. Step 5: Solve for x
    x = 529,841,078,191.30/839,384.67
  6. Step 6: Final answer
    x = 631,225.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.